Transmission-gearing.



J. C. SPARKS. TRANSMISSION GEARING. APPLICATION FILED JULY 2s, 1912.

1,050,704. Patented 1111.111913.

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JASON C. SPARKS, 0F CONCORD, NEBRASKA.

TRANSMISSION-Granma.

Specieation of Letters Patent.

Application filed Inl-y 23,1912. Serial No. 711,128.

To all whom it may concern:

Be it known that I, JASON C. SPARKS, a citizen of the United States,residing at Concord, in the county of Dixon and State of Nebraska, haveinvented certain new and useful Improvements in -f Transmission-Gearing, of which the following is a specification.

The presentl invention relates to transmission aring for motor vehicles,and conA sists in t e combinations and arrangements of parts hereinafterdisclosed and particularly pointed out in the accompanying claims.

The invention is shown, by wayof illustration, in the annexed drawingswherein,

Figure l is a top plan view of the gearing showing its manner ofapplication to a motor driven vehicle; Fig. 2 is a similar view, withparts omitted and in section for the sake of clearness; and Fig. 3 is adetail perspective view of one of the friction wheel shift-ing devices.

Referring to the construction in detail, 1

designates the chassis of a motor car having l cross pieces 2 on whichare mounted the several parts of the gearing; and 3 indicates the motorwhose shaft 4 has mounted thereon the usual flywheel 5. The end 6' ofthe shaft 4 is squared to receive a, head 7 that is secured ona sleeve 8through the me-v dium of a bolt 9, and a stepped friction pulley 10 isfixed to said sleeve 8 through the medium of the key 11 A pairof countershafts 12 and 13 disposed at angles, relatively to the sleeve 8, arejournaled on one of the cross members 2 at one end, and each on anindependent bar 13n at the opposite end. Each of said bars 13a ismounted to slide on the chassis sections 1 and 2 through the medium ofslots 14 formed therein at either end, and pins 15 determine the extentof movement of said bars 13. -On each of the shafts 12 and 13 isslidably mounted a friction'wheel 16` and mid lever is pvoted 'at 22 Atothe bar Patented Jan. 14, 1913.

that is supportedon the frame. The two levers for the two 'frictionwheels 1 6 are adapted to be actuated from a, common means consistingofa shaft 24 having a portion 25 to which is secured a lever ortread-le.

Arms.26 ixedto said shaft 24. connect to the The friction wheels 16 willrequire to be i. moved in a lateral direction for engaging with thedifferent steps on the cone pulley,

and to that end the shaft supporting bars 13 are slidably mounted, asabove stated. The means for; manually shifting each of said sliding barsconsists of a lever 28, pivotally mounted at 29, and having a linkconnection 30 with said slidable bar 13. The

two `levers 28 are connected by rods 31 and 32 with a plate 33 that ispivotally mounted and is providedawith an arm 34 through which the samemay be turned for moving said rods 31 and 32 inwardly or outwardly, asrequired. When the friction wheels 16 have been moved clear of theengaging step of the cone pulley 10, said wheels 16 may then be shiftedto the desired position and then again thrown inwardly against theselected step of said cone pulley.

On each of the shafts 12 and 13 is mounted a friction wheel 35 oftruncated conical design, and both of said friction wheels 35 are inmesh with a friction wheel -36 that is splined on the shaft 37, whoseend 38 is constructed to engage with the driving element connecting withthe rear wheels of the vehicle. The opposite end of the shaft 37 fitswithin and is journaled on the sleeve 8.

.Through the medium of the several gear elements (10, 16, 35 and 36) theshaft 37 is driven to impart selective speeds for the forward drive ofthe vehicle.

The stepped cone gear 10 has one section 39 thereof adapted to havefrctional engagement with 'a cupped member 40 that is secured by boltsor other means 41 to the friction wheel 36; Vand when sald elements 39and 40 are thrown into engagement the shaft 37 is driven by a directdrive `from the cone gear l10. The meaDS for Shiftin the shaft 37 tobring said elements 39 and! into engagement consists of a lever 42 wot-'ed at 43 'to the frame 2, and is 'provi jed a as aa ad with a ma aiauch 46 secured to the frame 2 and lever 42mspectively acts to hold`tlie 'shaft"37 in that' position illustrated inFig. 2.

The reverse drive of heshaft 37 is effecthavin atoothed recess'48 ada teto' be broug t into engagement with At e`pair 'of cone gear wheels 49secured to the ends of the'shafts 12and- 13. Said cone gear 47 is,through akey'50, splined on the=shaft 37, and is adapted to be movedthereon through the medium of a lever 51 pivoted tothe frameat 52 andprovidedwith an actuating treadle 53. A spring 54 connected to saidframe `and lever 51 respectively normally holds the ear elementv 47 inthat position shown in igs. 1 and 2. Said lever 51 is provided withclaws 55 that engage with a collar .56 formed integral with the conegear 47..

vIt is obvious that those skilled .in the art may vary the details ofconstruction and arrangement of parts, without de arting from the spiritof my invention, an therefore I do not wish to be limited to suchfeatures except as may be required by the claims.

Having thus described my invention, what I-clam as new is:

gears fixed on sai 1. In a transmission gearing the combination .of asupport; a driving shaft; a' sleeve connected to said shaft; a conefriction gear keyedon said sleeve; a pair of relatively angularly disosed' counter shafts; a friction gear slidab y mounted on each of saidangularly4 disposed counter shafts and adapted to engage Iwith lsaidcone friction gear; means for slidingsaid gears; a friction gear fixedlymounted on each-of said ang'ularly disposedcounter shafts; v4a drivenshaft; a friction gear splined on said driven shaft and adapted .toengage with the friction counter shafts; and means for shifting-said anlarly disposed counter shafts whereby -to a low the slidable frictiongears to bemoved to engage with the cone friction gear for selective;speeds,

- substantially as described.

j 2. In a transmission gearing the combinationof a support; a-drivingshaft; asleeve connected to said shaft; a stepped friction gearkeyed on said sleeve; ya pair of relatively angularly disposed counter4shafts swingingly mounted on said support; a friction gear slidablymounted on each of said counter shafts; means for sliding said gears onsaid counter shafts; a friction gear fixl edly mounted on each of saidangularly disposed counter shafts; a-driven shaft; a frict 10n gearsplined on said driven shaft and vada ted to en e with the'friction earsgag g on said counter shafts; means for swin g said counter shaftswhereby to aly low .t e slidable friction gears to be moved toengagewithlthe stepped friction gear to' friction gear for efectin effectforward drive of the driven shaft at selective speeds; cone pinionsmounted on said counter shafts; a cone pinion splined 0n -said drivenshaft and adapted to mesh withsaid'counter shaft cone pinions foreffecting reverse drive of said driven shaft; and means for moving saidsplined cone pinion into and out of engagement with said counter shaftcone pinions', substantially as described. l

3. `In a transmissiongcaring the combination of a support; a drlvingshaft; a sleeve connected to said shaft; a cone friction gear keyed onsaid sleeve; a pair of relatively an gularly disposed counter shafts' afriction gear slidably mounted on each of said angularly disposedcoilnter'shafts and adapted to engage with said cone friction gear;means for sliding said gears; a friction gear fixedly mounted on each ofsaid angularly disposed counter shafts; a driven'shaft; a friction gearsplined on said driven shaft and adapted to engage with the frictiongears fixed on said counter shafts; a cupped friction gear secured tosaid splined `friction gear and adapted to engage with the end ofsaid-cone gear for' effecting direct drive of said driven shaft byl thedriving shaft; means for moving'said cupped -friction gear into and outofen agement with said cone gear; and means or shiftin said countershafts whereby to allow the s idable friction gears to be moved toengage with the cone selective speeds for said driven-shaft, sustantially as d escribed.

4. In a'transmission gearing the combination of -a support; a drivingshaft; a sleeve connected to said shaft; a stepped friction gear keyed.on said sleeve;.a pair of relativelyl angularly disposed counter shaftsSwingingly mounted on said support; a friction gear slidably mounted oneach of said counter shaftsrmeans for sliding said gears on said countershafts; a friction gear fiX- edly mounted on each of said angularlydisposed counter-shafts; a driven shaft; a friction gear splined on saiddriven shaft and ada ted to engage with the friction gears fixe on saidcounter shaftsmeans for swinging said countershafts whereby to allow.the slidable friction gears to be moved to engage with the ste pedfriction ear to effect forward drive o the vdriven s aft at selectivespeeds; cone pinions mounted on said counter shafts' a cone pinionsplined on said driven-shaft and adapted to mesh with said counter shaftcone pmions for effecting reverse drive of said driven shaft;

means for moving said splined cone pinion into and out of engagementwith said counter shaft cone pinions; a. cup ed friction gear secured to'said splined ction gear and adapted to engage with the end of saidstepped friction gear for effecting direct dri-ve` ofsaid driven shaftby the drivin shaft; and means for moving said cupp V- friction gearinto and out of engagement with said stepped cone gear, substantially asdescribed. j

i 5. In a transmission gearing the combination ofa supporting frame; adriving shaft; -a sleeve` connected to said shaft; a stepped frictiongearkeyed on said sleeve; a counter l either side ly mounted on saidframe. at said sleeve; a driven shaft journaled on said frame andfitting within and journaled on said sleeve; a friction gear shaftSwingin slidably mounted on each of said counter shafts and adapted to"engage with s aid s stepped gear; forked arms engaging with each of saidslidable gears; lever and Yrod mechanism for moving said'forked arm's toslide said gears on saidzcounter shafts; lever and rod mechanism forswinging said counter shafts lfor permitting'said slidable gears 'td bemoved; a friction gear secured to each of.

said counter shafts; a"-friction gear splined on said driven s haft andadapted toengage with p said frlctlon gears secured on Asaid a levermounted on the frame and connected to said splined friction gear wherebyto'move th'ecuppd gearinto engagement with the stepped gear; a springsecured to said lever for holding said splmed gear in engagementwith'its respective gears; acone pinion secured to each of the countershafts; a cone pinion splined on said V,driven shaft and'adapted toengage with said counter shaft cone pinions for effecting reverse driveof said driven'shaft; anda means for mov` ing said splined cone pinioninto and out of engaging position, substantially as described;

In testimony whereof I aiix my signature in presence of two witnesses.

y JASONQ. SPARKS. Witnesses:

M. E. SPARKS, E. F. Spanne.l

said A

